Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH; German and English version prEN 17721:2023
Edition 2023-05

Plant biostimulants - Determination of the pH for liquid microbial plant biostimulants/pH in microbial products - Determination of pH; German version CEN/TS 17721:2022
Edition 2022-07

Petroleum and natural gas industries - Materials for use in H₂S-containing environments in oil and gas production - Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys (ISO 15156-3:2015); German version EN ISO 15156-3:2015
Edition 2015-12

Brewhouse plants - Minimum specifications
Edition 2021-02

Biological equipment for treating air and other gases - Requirements and application guidance for deodorization in wastewater treatment plants (ISO 23139:2023)
Edition 2024-07

Animal feeding stuffs: Methods of sampling and analysis - Determination of inorganic arsenic in animal feed by anion-exchange HPLC-ICP-MS; German version EN 17374:2020
Edition 2020-09

Foodstuffs - Determination of elements and their chemical species - Determination of inorganic arsenic in foodstuffs of marine and plant origin by anion-exchange HPLC-ICP-MS; German version EN 16802:2016
Edition 2016-07

Petroleum and natural gas industries - Materials for use in H₂S-containing environments in oil and gas production - Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys (ISO/FDIS 15156-3:2020); German and English version prEN ISO 15156-3:2020
Edition 2020-09

Sample preparation - Dispersing procedures for powders in liquids (ISO 14887:2000)
Edition 2010-03

Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by measuring the oxygen demand in a closed respirometer (ISO 14851:2019); German version EN ISO 14851:2019
Edition 2019-07